Diablo Diamond Grit Hole Saw DHS0312DG 5/16 Inch (Snap Lock Plus 1/4 Inch Hex Shank Continuous Rim Chip Free Porcelain Tile Granite Glass Drilling)

Diablo DHS0312DG 5/16 Inch Continuous Rim Diamond Grit Hole Saw

The Diablo DHS0312DG is a 5/16-inch diameter continuous rim diamond grit hole saw engineered to bore precise, chip-free clearance openings through fragile porcelain tile, ceramic, granite, marble, slate, and glass. Built with an industrial diamond grit cutting edge and a 1-inch cutting depth capacity, this masonry cup tool incorporates a 1/4-inch hex shank compatible with Diablo's Snap-Lock Plus™ mandrel system, impact drivers, and standard handheld drills to execute smooth material removal without cracking hard substrates. Featuring an integrated open-slot system for rapid core plug ejection, it allows tile installers and tradespeople to drill mounting holes for bathroom hardware anchors, small fasteners, and wiring pass-throughs without requiring a central pilot bit.

Best Used For:

• Porcelain & Ceramic Tile Hardware Anchor Installation: Drilling smooth 5/16-inch clearance holes through dense wall and floor tiles for bath accessory anchors, grab bars, and towel racks without edge chipping.
• Granite & Marble Countertop Fastener Drilling: Coring clean mounting holes through hard natural stone slabs, slate, and quartz vanity tops for small fixtures and cable pass-throughs.
• Glass & Delicate Masonry Penetrations: Executing controlled, crack-free circular cuts in glass panels, mirror tiles, and dense masonry substrates using handheld drill drivers or impact drivers.

Key Performance & Safety Features

• Continuous Rim Diamond Edge: High-density industrial diamond particles bond to a continuous rim profile to deliver smooth, burn-free cuts in ultra-hard tiles.
• Snap-Lock Plus™ Mandrel Compatibility: Connects directly to tool-free mandrel systems and impact drivers to allow fast cup swaps and swift core plug clearing.
• Integrated Plug Ejection Open Slot: Large side slot access permits easy insertion of small screwdrivers to pop out trapped stone and tile plugs quickly.
• No Pilot Bit Requirement: Engineered to start cuts smoothly at a 45-degree angle or with a guide template, eliminating central pilot bit cracking in delicate glass and stone.
• 1/4-Inch Hex Shank Fitment: Mounts securely into standard 1/4-inch impact driver quick-release chucks and power drill mandrels for slip-free torque transfer.
• Optimized 1-Inch Depth Capacity: Compact cup barrel easily bores through standard wall tiles, backer boards, and tile backings in a single pass.

What's Included

• (1) Diablo DHS0312DG 5/16" Diamond Grit Hole Saw

Technical Specifications

Pro-Tip: When coring dense porcelain or granite with this diamond grit hole saw, start the cut at a 45-degree angle until a shallow crescent groove is established, then flatten the drill while applying water cooling to prevent heat buildup and edge glazing.